several schools reported the number of students who received a flu vaccine in a year and the number of cases of the flu amongst their students that year. a scatter plot was made with a trend line that had an equation of y=-1/4x+85 where y is the total number of cases and x is the total number of students who received a flu vaccine

1,918

step-by-step explanation:

70

step-by-step explanation:

answer:   28.56 feet (approx)

step-by-step explanation:

since, triangle abc has measure of angle c equal to 55 degrees, measure of angle abc equal to 90 degrees, and length of bc equal to 20 feet.

we have to find out the measurement of segment ab.

therefore, tan 55° =

but bc = 20 feet.

⇒ tan 55 ° =  

⇒ ab = 20 × tan 55 °

⇒ ab = 20 × 1.42814800674

⇒ ab = 28.5629601348   ≈ 28.56 feet